Not Just The Usual Suspects

Love em or hate em, oil and natural gas companies keep the world running, and will for many years to come. The following 2012 ranking of the world's biggest is based on the combined volumes of oil and natural gas that these companies produce each day. You'll see one individual (arguably the oil industry's most powerful person) show up in a number of these pics. Can you guess who?For more energy industry coverage, check out my blog. -- Christopher Helman